The Disk,valve, cataloged under National Stock Number 4820-00-261-9687, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is The Walworth Company. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-261-9687 |
| Primary Part Number | 302352 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | The Walworth Company |
| Status | CANCELLED |
| Seat Angle | 30.0 DEGREES NOMINAL |
| Flange Seat to Disk End Height | 0.655 INCHES NOMINAL IN |
| Under Flange Height | 0.500 INCHES NOMINAL IN |
| Shank Diameter | 0.500 INCHES NOMINAL IN |
| Tip Diameter | 1.000 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Style Designator | POPPET |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2620-902-27-1IN | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 302352 PRIMARY | The Walworth Company (USA) |
| 2620-902 | The Walworth Company (USA) |
| 845-1889587 | Naval Ship Systems Command (USA) |
| 2620-902ASSYBV1IN PIECE27 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 1889587 | Naval Ship Systems Command (USA) |
| 2620-902 PIECE 27 1IN | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2620-902 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2620-902 PIECE 27 1IN PRIMARY | The Walworth Company (USA) |
| 845-1889587ASSYBV1IN PIECE27 PRIMARY | Naval Ship Systems Command (USA) |
| 1889587 PIECE 27 1IN | Naval Ship Systems Command (USA) |
| 2620-902-27 1IN | The Walworth Company (USA) |
NSN 4820-00-261-9687 is a Disk,valve, manufactured by The Walworth Company, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-261-9687 has 12 cross-referenced part numbers: 2620-902-27-1IN (Electric Boat Corporation Div General Dynamics Electric Boat), 302352 (The Walworth Company), 2620-902 (The Walworth Company), 845-1889587 (Naval Ship Systems Command), 2620-902ASSYBV1IN PIECE27 (Electric Boat Corporation Div General Dynamics Electric Boat) and 7 more.
There are 5 known substitutes for 4820-00-261-9687: 5340-00-479-4567, 4820-01-022-7635, 5998-01-045-3331 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 302352: Seat Angle: 30.0 DEGREES NOMINAL; Special Features: BOTTOM GUIDED; Flange Seat to Disk End Height: 0.655 INCHES NOMINAL IN; Under Flange Height: 0.500 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-261-9687 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.